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ext-boost/boost/filesystem/path.hpp
GPUCode 4b0f33f6f9
boost: Update to 1.83.0 (#33)
2023-11-04 21:30:42 +02:00

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// filesystem path.hpp ---------------------------------------------------------------//
// Copyright Vladimir Prus 2002
// Copyright Beman Dawes 2002-2005, 2009
// Copyright Andrey Semashev 2021-2023
// Distributed under the Boost Software License, Version 1.0.
// See http://www.boost.org/LICENSE_1_0.txt
// Library home page: http://www.boost.org/libs/filesystem
// path::stem(), extension(), and replace_extension() are based on
// basename(), extension(), and change_extension() from the original
// filesystem/convenience.hpp header by Vladimir Prus.
#ifndef BOOST_FILESYSTEM_PATH_HPP
#define BOOST_FILESYSTEM_PATH_HPP
#include <boost/assert.hpp>
#include <boost/filesystem/config.hpp>
#include <boost/filesystem/detail/path_traits.hpp>
#include <boost/iterator/iterator_facade.hpp>
#include <boost/iterator/iterator_categories.hpp>
#include <boost/core/enable_if.hpp>
#include <boost/io/quoted.hpp>
#include <boost/functional/hash_fwd.hpp>
#include <boost/type_traits/negation.hpp>
#include <boost/type_traits/conjunction.hpp>
#include <boost/type_traits/disjunction.hpp>
#include <boost/type_traits/is_same.hpp>
#include <boost/type_traits/remove_cv.hpp>
#include <cstddef>
#include <iosfwd>
#include <locale>
#include <string>
#include <iterator>
#if !defined(BOOST_NO_CXX17_HDR_STRING_VIEW)
#include <string_view>
#endif
#include <boost/filesystem/detail/header.hpp> // must be the last #include
namespace boost {
namespace filesystem {
class path;
namespace path_detail { // intentionally don't use filesystem::detail to not bring internal Boost.Filesystem functions into ADL via path_constants
template< typename Char, Char Separator, Char PreferredSeparator, Char Dot >
struct path_constants
{
typedef path_constants< Char, Separator, PreferredSeparator, Dot > path_constants_base;
typedef Char value_type;
static BOOST_CONSTEXPR_OR_CONST value_type separator = Separator;
static BOOST_CONSTEXPR_OR_CONST value_type preferred_separator = PreferredSeparator;
static BOOST_CONSTEXPR_OR_CONST value_type dot = Dot;
};
#if defined(BOOST_NO_CXX17_INLINE_VARIABLES)
template< typename Char, Char Separator, Char PreferredSeparator, Char Dot >
BOOST_CONSTEXPR_OR_CONST typename path_constants< Char, Separator, PreferredSeparator, Dot >::value_type
path_constants< Char, Separator, PreferredSeparator, Dot >::separator;
template< typename Char, Char Separator, Char PreferredSeparator, Char Dot >
BOOST_CONSTEXPR_OR_CONST typename path_constants< Char, Separator, PreferredSeparator, Dot >::value_type
path_constants< Char, Separator, PreferredSeparator, Dot >::preferred_separator;
template< typename Char, Char Separator, Char PreferredSeparator, Char Dot >
BOOST_CONSTEXPR_OR_CONST typename path_constants< Char, Separator, PreferredSeparator, Dot >::value_type
path_constants< Char, Separator, PreferredSeparator, Dot >::dot;
#endif
class path_iterator;
class path_reverse_iterator;
} // namespace path_detail
namespace detail {
struct path_algorithms
{
// A struct that denotes a contiguous range of characters in a string. A lightweight alternative to string_view.
struct substring
{
std::size_t pos;
std::size_t size;
};
typedef path_traits::path_native_char_type value_type;
typedef std::basic_string< value_type > string_type;
static bool has_filename_v3(path const& p);
static bool has_filename_v4(path const& p);
BOOST_FILESYSTEM_DECL static path filename_v3(path const& p);
static path filename_v4(path const& p);
BOOST_FILESYSTEM_DECL static path stem_v3(path const& p);
BOOST_FILESYSTEM_DECL static path stem_v4(path const& p);
BOOST_FILESYSTEM_DECL static path extension_v3(path const& p);
static path extension_v4(path const& p);
BOOST_FILESYSTEM_DECL static void remove_filename_v3(path& p);
BOOST_FILESYSTEM_DECL static void remove_filename_v4(path& p);
BOOST_FILESYSTEM_DECL static void replace_extension_v3(path& p, path const& new_extension);
BOOST_FILESYSTEM_DECL static void replace_extension_v4(path& p, path const& new_extension);
BOOST_FILESYSTEM_DECL static path lexically_normal_v3(path const& p);
BOOST_FILESYSTEM_DECL static path lexically_normal_v4(path const& p);
BOOST_FILESYSTEM_DECL static int compare_v3(path const& left, path const& right);
BOOST_FILESYSTEM_DECL static int compare_v4(path const& left, path const& right);
BOOST_FILESYSTEM_DECL static void append_v3(path& p, const value_type* b, const value_type* e);
BOOST_FILESYSTEM_DECL static void append_v4(path& p, const value_type* b, const value_type* e);
static void append_v4(path& left, path const& right);
// Returns: If separator is to be appended, m_pathname.size() before append. Otherwise 0.
// Note: An append is never performed if size()==0, so a returned 0 is unambiguous.
BOOST_FILESYSTEM_DECL static string_type::size_type append_separator_if_needed(path& p);
BOOST_FILESYSTEM_DECL static void erase_redundant_separator(path& p, string_type::size_type sep_pos);
BOOST_FILESYSTEM_DECL static string_type::size_type find_root_name_size(path const& p);
BOOST_FILESYSTEM_DECL static string_type::size_type find_root_path_size(path const& p);
BOOST_FILESYSTEM_DECL static substring find_root_directory(path const& p);
BOOST_FILESYSTEM_DECL static substring find_relative_path(path const& p);
BOOST_FILESYSTEM_DECL static string_type::size_type find_parent_path_size(path const& p);
BOOST_FILESYSTEM_DECL static string_type::size_type find_filename_v4_size(path const& p);
BOOST_FILESYSTEM_DECL static string_type::size_type find_extension_v4_size(path const& p);
BOOST_FILESYSTEM_DECL static int lex_compare_v3
(
path_detail::path_iterator first1, path_detail::path_iterator const& last1,
path_detail::path_iterator first2, path_detail::path_iterator const& last2
);
BOOST_FILESYSTEM_DECL static int lex_compare_v4
(
path_detail::path_iterator first1, path_detail::path_iterator const& last1,
path_detail::path_iterator first2, path_detail::path_iterator const& last2
);
BOOST_FILESYSTEM_DECL static void increment_v3(path_detail::path_iterator& it);
BOOST_FILESYSTEM_DECL static void increment_v4(path_detail::path_iterator& it);
BOOST_FILESYSTEM_DECL static void decrement_v3(path_detail::path_iterator& it);
BOOST_FILESYSTEM_DECL static void decrement_v4(path_detail::path_iterator& it);
};
} // namespace detail
//------------------------------------------------------------------------------------//
// //
// class path //
// //
//------------------------------------------------------------------------------------//
class path :
public filesystem::path_detail::path_constants<
#ifdef BOOST_WINDOWS_API
detail::path_traits::path_native_char_type, L'/', L'\\', L'.'
#else
detail::path_traits::path_native_char_type, '/', '/', '.'
#endif
>
{
friend class path_detail::path_iterator;
friend class path_detail::path_reverse_iterator;
friend struct detail::path_algorithms;
public:
// value_type is the character type used by the operating system API to
// represent paths.
typedef detail::path_algorithms::value_type value_type;
typedef detail::path_algorithms::string_type string_type;
typedef detail::path_traits::codecvt_type codecvt_type;
// ----- character encoding conversions -----
// Following the principle of least astonishment, path input arguments
// passed to or obtained from the operating system via objects of
// class path behave as if they were directly passed to or
// obtained from the O/S API, unless conversion is explicitly requested.
//
// POSIX specfies that path strings are passed unchanged to and from the
// API. Note that this is different from the POSIX command line utilities,
// which convert according to a locale.
//
// Thus for POSIX, char strings do not undergo conversion. wchar_t strings
// are converted to/from char using the path locale or, if a conversion
// argument is given, using a conversion object modeled on
// std::wstring_convert.
//
// The path locale, which is global to the thread, can be changed by the
// imbue() function. It is initialized to an implementation defined locale.
//
// For Windows, wchar_t strings do not undergo conversion. char strings
// are converted using the "ANSI" or "OEM" code pages, as determined by
// the AreFileApisANSI() function, or, if a conversion argument is given,
// using a conversion object modeled on std::wstring_convert.
//
// See m_pathname comments for further important rationale.
// TODO: rules needed for operating systems that use / or .
// differently, or format directory paths differently from file paths.
//
// **********************************************************************************
//
// More work needed: How to handle an operating system that may have
// slash characters or dot characters in valid filenames, either because
// it doesn't follow the POSIX standard, or because it allows MBCS
// filename encodings that may contain slash or dot characters. For
// example, ISO/IEC 2022 (JIS) encoding which allows switching to
// JIS x0208-1983 encoding. A valid filename in this set of encodings is
// 0x1B 0x24 0x42 [switch to X0208-1983] 0x24 0x2F [U+304F Kiragana letter KU]
// ^^^^
// Note that 0x2F is the ASCII slash character
//
// **********************************************************************************
// Supported source arguments: half-open iterator range, container, c-array,
// and single pointer to null terminated string.
// All source arguments except pointers to null terminated byte strings support
// multi-byte character strings which may have embedded nulls. Embedded null
// support is required for some Asian languages on Windows.
// "const codecvt_type& cvt=codecvt()" default arguments are not used because this
// limits the impact of locale("") initialization failures on POSIX systems to programs
// that actually depend on locale(""). It further ensures that exceptions thrown
// as a result of such failues occur after main() has started, so can be caught.
private:
//! Assignment operation
class assign_op
{
private:
path& m_self;
public:
typedef void result_type;
explicit assign_op(path& self) BOOST_NOEXCEPT : m_self(self) {}
result_type operator() (const value_type* source, const value_type* source_end, const codecvt_type* = NULL) const
{
m_self.m_pathname.assign(source, source_end);
}
template< typename OtherChar >
result_type operator() (const OtherChar* source, const OtherChar* source_end, const codecvt_type* cvt = NULL) const
{
m_self.m_pathname.clear();
detail::path_traits::convert(source, source_end, m_self.m_pathname, cvt);
}
};
//! Concatenation operation
class concat_op
{
private:
path& m_self;
public:
typedef void result_type;
explicit concat_op(path& self) BOOST_NOEXCEPT : m_self(self) {}
result_type operator() (const value_type* source, const value_type* source_end, const codecvt_type* = NULL) const
{
m_self.m_pathname.append(source, source_end);
}
template< typename OtherChar >
result_type operator() (const OtherChar* source, const OtherChar* source_end, const codecvt_type* cvt = NULL) const
{
detail::path_traits::convert(source, source_end, m_self.m_pathname, cvt);
}
};
//! Path appending operation
class append_op
{
private:
path& m_self;
public:
typedef void result_type;
explicit append_op(path& self) BOOST_NOEXCEPT : m_self(self) {}
BOOST_FORCEINLINE result_type operator() (const value_type* source, const value_type* source_end, const codecvt_type* = NULL) const
{
m_self.append(source, source_end);
}
template< typename OtherChar >
BOOST_FORCEINLINE result_type operator() (const OtherChar* source, const OtherChar* source_end, const codecvt_type* cvt = NULL) const
{
string_type src;
detail::path_traits::convert(source, source_end, src, cvt);
m_self.append(src.data(), src.data() + src.size());
}
};
//! Path comparison operation
class compare_op
{
private:
path const& m_self;
public:
typedef int result_type;
explicit compare_op(path const& self) BOOST_NOEXCEPT : m_self(self) {}
result_type operator() (const value_type* source, const value_type* source_end, const codecvt_type* = NULL) const;
template< typename OtherChar >
result_type operator() (const OtherChar* source, const OtherChar* source_end, const codecvt_type* cvt = NULL) const;
};
public:
typedef path_detail::path_iterator iterator;
typedef iterator const_iterator;
typedef path_detail::path_reverse_iterator reverse_iterator;
typedef reverse_iterator const_reverse_iterator;
public:
// ----- constructors -----
path() BOOST_NOEXCEPT {}
path(path const& p) : m_pathname(p.m_pathname) {}
path(path const& p, codecvt_type const&) : m_pathname(p.m_pathname) {}
path(const value_type* s) : m_pathname(s) {}
path(const value_type* s, codecvt_type const&) : m_pathname(s) {}
path(string_type const& s) : m_pathname(s) {}
path(string_type const& s, codecvt_type const&) : m_pathname(s) {}
#if !defined(BOOST_NO_CXX17_HDR_STRING_VIEW)
path(std::basic_string_view< value_type > const& s) : m_pathname(s) {}
path(std::basic_string_view< value_type > const& s, codecvt_type const&) : m_pathname(s) {}
#endif
#if !defined(BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS)
template<
typename Source,
typename = typename boost::enable_if_c<
boost::conjunction<
detail::path_traits::is_path_source< typename boost::remove_cv< Source >::type >,
boost::negation< detail::path_traits::is_native_path_source< typename boost::remove_cv< Source >::type > >
>::value
>::type
>
path(Source const& source)
#else
template< typename Source >
path(Source const& source, typename boost::enable_if_c<
boost::conjunction<
detail::path_traits::is_path_source< typename boost::remove_cv< Source >::type >,
boost::negation< detail::path_traits::is_native_path_source< typename boost::remove_cv< Source >::type > >
>::value
>::type* = NULL)
#endif
{
assign(source);
}
#if !defined(BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS)
template<
typename Source,
typename = typename boost::enable_if_c<
boost::conjunction<
detail::path_traits::is_path_source< typename boost::remove_cv< Source >::type >,
boost::negation< detail::path_traits::is_native_path_source< typename boost::remove_cv< Source >::type > >
>::value
>::type
>
explicit path(Source const& source, codecvt_type const& cvt)
#else
template< typename Source >
explicit path(Source const& source, codecvt_type const& cvt, typename boost::enable_if_c<
boost::conjunction<
detail::path_traits::is_path_source< typename boost::remove_cv< Source >::type >,
boost::negation< detail::path_traits::is_native_path_source< typename boost::remove_cv< Source >::type > >
>::value
>::type* = NULL)
#endif
{
assign(source, cvt);
}
// As of October 2015 the interaction between noexcept and =default is so troublesome
// for VC++, GCC, and probably other compilers, that =default is not used with noexcept
// functions. GCC is not even consistent for the same release on different platforms.
#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
path(path&& p) BOOST_NOEXCEPT : m_pathname(static_cast< string_type&& >(p.m_pathname))
{
}
path(path&& p, codecvt_type const&) BOOST_NOEXCEPT : m_pathname(static_cast< string_type&& >(p.m_pathname))
{
}
path& operator=(path&& p) BOOST_NOEXCEPT
{
m_pathname = static_cast< string_type&& >(p.m_pathname);
return *this;
}
path& assign(path&& p) BOOST_NOEXCEPT
{
m_pathname = static_cast< string_type&& >(p.m_pathname);
return *this;
}
path& assign(path&& p, codecvt_type const&) BOOST_NOEXCEPT
{
m_pathname = static_cast< string_type&& >(p.m_pathname);
return *this;
}
path(string_type&& s) BOOST_NOEXCEPT : m_pathname(static_cast< string_type&& >(s))
{
}
path(string_type&& s, codecvt_type const&) BOOST_NOEXCEPT : m_pathname(static_cast< string_type&& >(s))
{
}
path& operator=(string_type&& p) BOOST_NOEXCEPT
{
m_pathname = static_cast< string_type&& >(p);
return *this;
}
path& assign(string_type&& p) BOOST_NOEXCEPT
{
m_pathname = static_cast< string_type&& >(p);
return *this;
}
path& assign(string_type&& p, codecvt_type const&) BOOST_NOEXCEPT
{
m_pathname = static_cast< string_type&& >(p);
return *this;
}
#endif
path(const value_type* begin, const value_type* end) : m_pathname(begin, end) {}
path(const value_type* begin, const value_type* end, codecvt_type const&) : m_pathname(begin, end) {}
#if !defined(BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS)
template<
typename InputIterator,
typename = typename boost::enable_if_c<
boost::conjunction<
detail::path_traits::is_path_source_iterator< InputIterator >,
boost::negation< detail::path_traits::is_native_char_ptr< InputIterator > >
>::value
>::type
>
path(InputIterator begin, InputIterator end)
#else
template< typename InputIterator >
path(InputIterator begin, InputIterator end, typename boost::enable_if_c<
boost::conjunction<
detail::path_traits::is_path_source_iterator< InputIterator >,
boost::negation< detail::path_traits::is_native_char_ptr< InputIterator > >
>::value
>::type* = NULL)
#endif
{
if (begin != end)
{
typedef std::basic_string< typename std::iterator_traits< InputIterator >::value_type > source_t;
source_t source(begin, end);
#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
assign(static_cast< source_t&& >(source));
#else
assign(source);
#endif
}
}
#if !defined(BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS)
template<
typename InputIterator,
typename = typename boost::enable_if_c<
boost::conjunction<
detail::path_traits::is_path_source_iterator< InputIterator >,
boost::negation< detail::path_traits::is_native_char_ptr< InputIterator > >
>::value
>::type
>
path(InputIterator begin, InputIterator end, codecvt_type const& cvt)
#else
template< typename InputIterator >
path(InputIterator begin, InputIterator end, codecvt_type const& cvt, typename boost::enable_if_c<
boost::conjunction<
detail::path_traits::is_path_source_iterator< InputIterator >,
boost::negation< detail::path_traits::is_native_char_ptr< InputIterator > >
>::value
>::type* = NULL)
#endif
{
if (begin != end)
{
typedef std::basic_string< typename std::iterator_traits< InputIterator >::value_type > source_t;
source_t source(begin, end);
#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
assign(static_cast< source_t&& >(source), cvt);
#else
assign(source, cvt);
#endif
}
}
#if !defined(BOOST_NO_CXX11_NULLPTR)
BOOST_DELETED_FUNCTION(path(std::nullptr_t))
BOOST_DELETED_FUNCTION(path& operator= (std::nullptr_t))
#endif
public:
// ----- assignments -----
// We need to explicitly define copy assignment as otherwise it will be implicitly defined as deleted because there is move assignment
path& operator=(path const& p);
template< typename Source >
typename boost::enable_if_c<
boost::disjunction<
detail::path_traits::is_path_source< typename boost::remove_cv< Source >::type >,
detail::path_traits::is_convertible_to_path_source< typename boost::remove_cv< Source >::type >
>::value,
path&
>::type operator=(Source const& source)
{
return assign(source);
}
path& assign(path const& p)
{
m_pathname = p.m_pathname;
return *this;
}
template< typename Source >
typename boost::enable_if_c<
detail::path_traits::is_path_source< typename boost::remove_cv< Source >::type >::value,
path&
>::type assign(Source const& source)
{
detail::path_traits::dispatch(source, assign_op(*this));
return *this;
}
template< typename Source >
typename boost::enable_if_c<
boost::conjunction<
detail::path_traits::is_convertible_to_path_source< typename boost::remove_cv< Source >::type >,
boost::negation< detail::path_traits::is_path_source< typename boost::remove_cv< Source >::type > >
>::value,
path&
>::type assign(Source const& source)
{
detail::path_traits::dispatch_convertible(source, assign_op(*this));
return *this;
}
path& assign(path const& p, codecvt_type const&)
{
m_pathname = p.m_pathname;
return *this;
}
template< typename Source >
typename boost::enable_if_c<
detail::path_traits::is_path_source< typename boost::remove_cv< Source >::type >::value,
path&
>::type assign(Source const& source, codecvt_type const& cvt)
{
detail::path_traits::dispatch(source, assign_op(*this), &cvt);
return *this;
}
template< typename Source >
typename boost::enable_if_c<
boost::conjunction<
detail::path_traits::is_convertible_to_path_source< typename boost::remove_cv< Source >::type >,
boost::negation< detail::path_traits::is_path_source< typename boost::remove_cv< Source >::type > >
>::value,
path&
>::type assign(Source const& source, codecvt_type const& cvt)
{
detail::path_traits::dispatch_convertible(source, assign_op(*this), &cvt);
return *this;
}
path& assign(const value_type* begin, const value_type* end)
{
m_pathname.assign(begin, end);
return *this;
}
template< typename InputIterator >
typename boost::enable_if_c<
boost::conjunction<
detail::path_traits::is_path_source_iterator< InputIterator >,
boost::negation< detail::path_traits::is_native_char_ptr< InputIterator > >
>::value,
path&
>::type assign(InputIterator begin, InputIterator end)
{
m_pathname.clear();
if (begin != end)
{
typedef std::basic_string< typename std::iterator_traits< InputIterator >::value_type > source_t;
source_t source(begin, end);
#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
assign(static_cast< source_t&& >(source));
#else
assign(source);
#endif
}
return *this;
}
path& assign(const value_type* begin, const value_type* end, codecvt_type const&)
{
m_pathname.assign(begin, end);
return *this;
}
template< typename InputIterator >
typename boost::enable_if_c<
boost::conjunction<
detail::path_traits::is_path_source_iterator< InputIterator >,
boost::negation< detail::path_traits::is_native_char_ptr< InputIterator > >
>::value,
path&
>::type assign(InputIterator begin, InputIterator end, codecvt_type const& cvt)
{
m_pathname.clear();
if (begin != end)
{
typedef std::basic_string< typename std::iterator_traits< InputIterator >::value_type > source_t;
source_t source(begin, end);
#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
assign(static_cast< source_t&& >(source), cvt);
#else
assign(source, cvt);
#endif
}
return *this;
}
// ----- concatenation -----
path& operator+=(path const& p);
template< typename Source >
typename boost::enable_if_c<
detail::path_traits::is_convertible_to_path_source< typename boost::remove_cv< Source >::type >::value,
path&
>::type operator+=(Source const& source)
{
return concat(source);
}
path& operator+=(value_type c)
{
m_pathname.push_back(c);
return *this;
}
template< typename CharT >
typename boost::enable_if_c<
detail::path_traits::is_path_char_type< CharT >::value,
path&
>::type operator+=(CharT c)
{
CharT tmp[2];
tmp[0] = c;
tmp[1] = static_cast< CharT >(0);
concat_op(*this)(tmp, tmp + 1);
return *this;
}
path& concat(path const& p)
{
m_pathname.append(p.m_pathname);
return *this;
}
template< typename Source >
typename boost::enable_if_c<
detail::path_traits::is_path_source< typename boost::remove_cv< Source >::type >::value,
path&
>::type concat(Source const& source)
{
detail::path_traits::dispatch(source, concat_op(*this));
return *this;
}
template< typename Source >
typename boost::enable_if_c<
boost::conjunction<
detail::path_traits::is_convertible_to_path_source< typename boost::remove_cv< Source >::type >,
boost::negation< detail::path_traits::is_path_source< typename boost::remove_cv< Source >::type > >
>::value,
path&
>::type concat(Source const& source)
{
detail::path_traits::dispatch_convertible(source, concat_op(*this));
return *this;
}
path& concat(path const& p, codecvt_type const&)
{
m_pathname.append(p.m_pathname);
return *this;
}
template< typename Source >
typename boost::enable_if_c<
detail::path_traits::is_path_source< typename boost::remove_cv< Source >::type >::value,
path&
>::type concat(Source const& source, codecvt_type const& cvt)
{
detail::path_traits::dispatch(source, concat_op(*this), &cvt);
return *this;
}
template< typename Source >
typename boost::enable_if_c<
boost::conjunction<
detail::path_traits::is_convertible_to_path_source< typename boost::remove_cv< Source >::type >,
boost::negation< detail::path_traits::is_path_source< typename boost::remove_cv< Source >::type > >
>::value,
path&
>::type concat(Source const& source, codecvt_type const& cvt)
{
detail::path_traits::dispatch_convertible(source, concat_op(*this), &cvt);
return *this;
}
path& concat(const value_type* begin, const value_type* end)
{
m_pathname.append(begin, end);
return *this;
}
template< typename InputIterator >
typename boost::enable_if_c<
boost::conjunction<
detail::path_traits::is_path_source_iterator< InputIterator >,
boost::negation< detail::path_traits::is_native_char_ptr< InputIterator > >
>::value,
path&
>::type concat(InputIterator begin, InputIterator end)
{
if (begin != end)
{
std::basic_string< typename std::iterator_traits< InputIterator >::value_type > source(begin, end);
detail::path_traits::dispatch(source, concat_op(*this));
}
return *this;
}
path& concat(const value_type* begin, const value_type* end, codecvt_type const&)
{
m_pathname.append(begin, end);
return *this;
}
template< typename InputIterator >
typename boost::enable_if_c<
boost::conjunction<
detail::path_traits::is_path_source_iterator< InputIterator >,
boost::negation< detail::path_traits::is_native_char_ptr< InputIterator > >
>::value,
path&
>::type concat(InputIterator begin, InputIterator end, codecvt_type const& cvt)
{
if (begin != end)
{
std::basic_string< typename std::iterator_traits< InputIterator >::value_type > source(begin, end);
detail::path_traits::dispatch(source, concat_op(*this), &cvt);
}
return *this;
}
// ----- appends -----
// if a separator is added, it is the preferred separator for the platform;
// slash for POSIX, backslash for Windows
path& operator/=(path const& p);
template< typename Source >
BOOST_FORCEINLINE typename boost::enable_if_c<
detail::path_traits::is_convertible_to_path_source< typename boost::remove_cv< Source >::type >::value,
path&
>::type operator/=(Source const& source)
{
return append(source);
}
path& append(path const& p);
template< typename Source >
BOOST_FORCEINLINE typename boost::enable_if_c<
detail::path_traits::is_path_source< typename boost::remove_cv< Source >::type >::value,
path&
>::type append(Source const& source)
{
detail::path_traits::dispatch(source, append_op(*this));
return *this;
}
template< typename Source >
BOOST_FORCEINLINE typename boost::enable_if_c<
boost::conjunction<
detail::path_traits::is_convertible_to_path_source< typename boost::remove_cv< Source >::type >,
boost::negation< detail::path_traits::is_path_source< typename boost::remove_cv< Source >::type > >
>::value,
path&
>::type append(Source const& source)
{
detail::path_traits::dispatch_convertible(source, append_op(*this));
return *this;
}
path& append(path const& p, codecvt_type const&);
template< typename Source >
BOOST_FORCEINLINE typename boost::enable_if_c<
detail::path_traits::is_path_source< typename boost::remove_cv< Source >::type >::value,
path&
>::type append(Source const& source, codecvt_type const& cvt)
{
detail::path_traits::dispatch(source, append_op(*this), &cvt);
return *this;
}
template< typename Source >
BOOST_FORCEINLINE typename boost::enable_if_c<
boost::conjunction<
detail::path_traits::is_convertible_to_path_source< typename boost::remove_cv< Source >::type >,
boost::negation< detail::path_traits::is_path_source< typename boost::remove_cv< Source >::type > >
>::value,
path&
>::type append(Source const& source, codecvt_type const& cvt)
{
detail::path_traits::dispatch_convertible(source, append_op(*this), &cvt);
return *this;
}
path& append(const value_type* begin, const value_type* end);
template< typename InputIterator >
BOOST_FORCEINLINE typename boost::enable_if_c<
boost::conjunction<
detail::path_traits::is_path_source_iterator< InputIterator >,
boost::negation< detail::path_traits::is_native_char_ptr< InputIterator > >
>::value,
path&
>::type append(InputIterator begin, InputIterator end)
{
std::basic_string< typename std::iterator_traits< InputIterator >::value_type > source(begin, end);
detail::path_traits::dispatch(source, append_op(*this));
return *this;
}
path& append(const value_type* begin, const value_type* end, codecvt_type const&);
template< typename InputIterator >
BOOST_FORCEINLINE typename boost::enable_if_c<
boost::conjunction<
detail::path_traits::is_path_source_iterator< InputIterator >,
boost::negation< detail::path_traits::is_native_char_ptr< InputIterator > >
>::value,
path&
>::type append(InputIterator begin, InputIterator end, const codecvt_type& cvt)
{
std::basic_string< typename std::iterator_traits< InputIterator >::value_type > source(begin, end);
detail::path_traits::dispatch(source, append_op(*this), &cvt);
return *this;
}
// ----- modifiers -----
void clear() BOOST_NOEXCEPT { m_pathname.clear(); }
#ifdef BOOST_POSIX_API
path& make_preferred()
{
// No effect on POSIX
return *this;
}
#else // BOOST_WINDOWS_API
BOOST_FILESYSTEM_DECL path& make_preferred(); // change slashes to backslashes
#endif
path& remove_filename();
BOOST_FILESYSTEM_DECL path& remove_filename_and_trailing_separators();
BOOST_FILESYSTEM_DECL path& remove_trailing_separator();
BOOST_FILESYSTEM_DECL path& replace_filename(path const& replacement);
path& replace_extension(path const& new_extension = path());
void swap(path& rhs) BOOST_NOEXCEPT { m_pathname.swap(rhs.m_pathname); }
// ----- observers -----
// For operating systems that format file paths differently than directory
// paths, return values from observers are formatted as file names unless there
// is a trailing separator, in which case returns are formatted as directory
// paths. POSIX and Windows make no such distinction.
// Implementations are permitted to return const values or const references.
// The string or path returned by an observer are specified as being formatted
// as "native" or "generic".
//
// For POSIX, these are all the same format; slashes and backslashes are as input and
// are not modified.
//
// For Windows, native: as input; slashes and backslashes are not modified;
// this is the format of the internally stored string.
// generic: backslashes are converted to slashes
// ----- native format observers -----
string_type const& native() const BOOST_NOEXCEPT { return m_pathname; }
const value_type* c_str() const BOOST_NOEXCEPT { return m_pathname.c_str(); }
string_type::size_type size() const BOOST_NOEXCEPT { return m_pathname.size(); }
template< typename String >
String string() const;
template< typename String >
String string(codecvt_type const& cvt) const;
#ifdef BOOST_WINDOWS_API
std::string string() const
{
std::string tmp;
if (!m_pathname.empty())
detail::path_traits::convert(m_pathname.data(), m_pathname.data() + m_pathname.size(), tmp);
return tmp;
}
std::string string(codecvt_type const& cvt) const
{
std::string tmp;
if (!m_pathname.empty())
detail::path_traits::convert(m_pathname.data(), m_pathname.data() + m_pathname.size(), tmp, &cvt);
return tmp;
}
// string_type is std::wstring, so there is no conversion
std::wstring const& wstring() const { return m_pathname; }
std::wstring const& wstring(codecvt_type const&) const { return m_pathname; }
#else // BOOST_POSIX_API
// string_type is std::string, so there is no conversion
std::string const& string() const { return m_pathname; }
std::string const& string(codecvt_type const&) const { return m_pathname; }
std::wstring wstring() const
{
std::wstring tmp;
if (!m_pathname.empty())
detail::path_traits::convert(m_pathname.data(), m_pathname.data() + m_pathname.size(), tmp);
return tmp;
}
std::wstring wstring(codecvt_type const& cvt) const
{
std::wstring tmp;
if (!m_pathname.empty())
detail::path_traits::convert(m_pathname.data(), m_pathname.data() + m_pathname.size(), tmp, &cvt);
return tmp;
}
#endif
// ----- generic format observers -----
// Experimental generic function returning generic formatted path (i.e. separators
// are forward slashes). Motivation: simpler than a family of generic_*string
// functions.
#ifdef BOOST_WINDOWS_API
BOOST_FILESYSTEM_DECL path generic_path() const;
#else
path generic_path() const;
#endif
template< typename String >
String generic_string() const;
template< typename String >
String generic_string(codecvt_type const& cvt) const;
#ifdef BOOST_WINDOWS_API
std::string generic_string() const { return generic_path().string(); }
std::string generic_string(codecvt_type const& cvt) const { return generic_path().string(cvt); }
std::wstring generic_wstring() const { return generic_path().wstring(); }
std::wstring generic_wstring(codecvt_type const&) const { return generic_wstring(); }
#else // BOOST_POSIX_API
// On POSIX-like systems, the generic format is the same as the native format
std::string const& generic_string() const { return m_pathname; }
std::string const& generic_string(codecvt_type const&) const { return m_pathname; }
std::wstring generic_wstring() const { return this->wstring(); }
std::wstring generic_wstring(codecvt_type const& cvt) const { return this->wstring(cvt); }
#endif
// ----- compare -----
int compare(path const& p) const; // generic, lexicographical
template< typename Source >
BOOST_FORCEINLINE typename boost::enable_if_c<
detail::path_traits::is_path_source< typename boost::remove_cv< Source >::type >::value,
int
>::type compare(Source const& source) const
{
return detail::path_traits::dispatch(source, compare_op(*this));
}
template< typename Source >
BOOST_FORCEINLINE typename boost::enable_if_c<
boost::conjunction<
detail::path_traits::is_convertible_to_path_source< typename boost::remove_cv< Source >::type >,
boost::negation< detail::path_traits::is_path_source< typename boost::remove_cv< Source >::type > >
>::value,
int
>::type compare(Source const& source) const
{
return detail::path_traits::dispatch_convertible(source, compare_op(*this));
}
template< typename Source >
BOOST_FORCEINLINE typename boost::enable_if_c<
detail::path_traits::is_path_source< typename boost::remove_cv< Source >::type >::value,
int
>::type compare(Source const& source, codecvt_type const& cvt) const
{
return detail::path_traits::dispatch(source, compare_op(*this), &cvt);
}
template< typename Source >
BOOST_FORCEINLINE typename boost::enable_if_c<
boost::conjunction<
detail::path_traits::is_convertible_to_path_source< typename boost::remove_cv< Source >::type >,
boost::negation< detail::path_traits::is_path_source< typename boost::remove_cv< Source >::type > >
>::value,
int
>::type compare(Source const& source, codecvt_type const& cvt) const
{
return detail::path_traits::dispatch_convertible(source, compare_op(*this), &cvt);
}
// ----- decomposition -----
path root_path() const { return path(m_pathname.c_str(), m_pathname.c_str() + detail::path_algorithms::find_root_path_size(*this)); }
// returns 0 or 1 element path even on POSIX, root_name() is non-empty() for network paths
path root_name() const { return path(m_pathname.c_str(), m_pathname.c_str() + detail::path_algorithms::find_root_name_size(*this)); }
// returns 0 or 1 element path
path root_directory() const
{
detail::path_algorithms::substring root_dir = detail::path_algorithms::find_root_directory(*this);
const value_type* p = m_pathname.c_str() + root_dir.pos;
return path(p, p + root_dir.size);
}
path relative_path() const
{
detail::path_algorithms::substring rel_path = detail::path_algorithms::find_relative_path(*this);
const value_type* p = m_pathname.c_str() + rel_path.pos;
return path(p, p + rel_path.size);
}
path parent_path() const { return path(m_pathname.c_str(), m_pathname.c_str() + detail::path_algorithms::find_parent_path_size(*this)); }
path filename() const; // returns 0 or 1 element path
path stem() const; // returns 0 or 1 element path
path extension() const; // returns 0 or 1 element path
// ----- query -----
bool empty() const BOOST_NOEXCEPT { return m_pathname.empty(); }
bool filename_is_dot() const;
bool filename_is_dot_dot() const;
bool has_root_path() const { return detail::path_algorithms::find_root_path_size(*this) > 0; }
bool has_root_name() const { return detail::path_algorithms::find_root_name_size(*this) > 0; }
bool has_root_directory() const { return detail::path_algorithms::find_root_directory(*this).size > 0; }
bool has_relative_path() const { return detail::path_algorithms::find_relative_path(*this).size > 0; }
bool has_parent_path() const { return detail::path_algorithms::find_parent_path_size(*this) > 0; }
bool has_filename() const;
bool has_stem() const { return !stem().empty(); }
bool has_extension() const { return !extension().empty(); }
bool is_relative() const { return !is_absolute(); }
bool is_absolute() const
{
// Windows CE has no root name (aka drive letters)
#if defined(BOOST_WINDOWS_API) && !defined(UNDER_CE)
return has_root_name() && has_root_directory();
#else
return has_root_directory();
#endif
}
// ----- lexical operations -----
path lexically_normal() const;
BOOST_FILESYSTEM_DECL path lexically_relative(path const& base) const;
path lexically_proximate(path const& base) const;
// ----- iterators -----
BOOST_FILESYSTEM_DECL iterator begin() const;
BOOST_FILESYSTEM_DECL iterator end() const;
reverse_iterator rbegin() const;
reverse_iterator rend() const;
// ----- static member functions -----
static BOOST_FILESYSTEM_DECL std::locale imbue(std::locale const& loc);
static BOOST_FILESYSTEM_DECL codecvt_type const& codecvt();
// ----- deprecated functions -----
#if !defined(BOOST_FILESYSTEM_NO_DEPRECATED)
// recently deprecated functions supplied by default
path& normalize();
BOOST_FILESYSTEM_DETAIL_DEPRECATED("Use path::remove_filename() instead")
path& remove_leaf() { return remove_filename(); }
BOOST_FILESYSTEM_DETAIL_DEPRECATED("Use path::filename() instead")
path leaf() const { return filename(); }
BOOST_FILESYSTEM_DETAIL_DEPRECATED("Use path::parent_path() instead")
path branch_path() const { return parent_path(); }
BOOST_FILESYSTEM_DETAIL_DEPRECATED("Use path::generic_path() instead")
path generic() const { return generic_path(); }
BOOST_FILESYSTEM_DETAIL_DEPRECATED("Use !path::empty() instead")
bool has_leaf() const { return !m_pathname.empty(); }
BOOST_FILESYSTEM_DETAIL_DEPRECATED("Use path::has_parent_path() instead")
bool has_branch_path() const { return has_parent_path(); }
BOOST_FILESYSTEM_DETAIL_DEPRECATED("Use path::is_absolute() instead")
bool is_complete() const { return is_absolute(); }
#endif
#if defined(BOOST_FILESYSTEM_DEPRECATED)
// deprecated functions with enough signature or semantic changes that they are
// not supplied by default
BOOST_FILESYSTEM_DETAIL_DEPRECATED("Use path::string() instead")
std::string file_string() const { return string(); }
BOOST_FILESYSTEM_DETAIL_DEPRECATED("Use path::string() instead")
std::string directory_string() const { return string(); }
BOOST_FILESYSTEM_DETAIL_DEPRECATED("Use path::string() instead")
std::string native_file_string() const { return string(); }
BOOST_FILESYSTEM_DETAIL_DEPRECATED("Use path::string() instead")
std::string native_directory_string() const { return string(); }
BOOST_FILESYSTEM_DETAIL_DEPRECATED("Use path::native() instead")
string_type external_file_string() const { return native(); }
BOOST_FILESYSTEM_DETAIL_DEPRECATED("Use path::native() instead")
string_type external_directory_string() const { return native(); }
#endif
//--------------------------------------------------------------------------------------//
// class path private members //
//--------------------------------------------------------------------------------------//
private:
/*
* m_pathname has the type, encoding, and format required by the native
* operating system. Thus for POSIX and Windows there is no conversion for
* passing m_pathname.c_str() to the O/S API or when obtaining a path from the
* O/S API. POSIX encoding is unspecified other than for dot and slash
* characters; POSIX just treats paths as a sequence of bytes. Windows
* encoding is UCS-2 or UTF-16 depending on the version.
*/
string_type m_pathname; // Windows: as input; backslashes NOT converted to slashes,
// slashes NOT converted to backslashes
};
namespace detail {
BOOST_FILESYSTEM_DECL path const& dot_path();
BOOST_FILESYSTEM_DECL path const& dot_dot_path();
} // namespace detail
#ifndef BOOST_FILESYSTEM_NO_DEPRECATED
typedef path wpath;
#endif
namespace path_detail {
//------------------------------------------------------------------------------------//
// class path::iterator //
//------------------------------------------------------------------------------------//
class path_iterator :
public boost::iterator_facade<
path_iterator,
const path,
boost::bidirectional_traversal_tag
>
{
private:
friend class boost::iterator_core_access;
friend class boost::filesystem::path;
friend class path_reverse_iterator;
friend struct boost::filesystem::detail::path_algorithms;
path const& dereference() const { return m_element; }
bool equal(path_iterator const& rhs) const BOOST_NOEXCEPT
{
return m_path_ptr == rhs.m_path_ptr && m_pos == rhs.m_pos;
}
void increment();
void decrement();
private:
// current element
path m_element;
// path being iterated over
const path* m_path_ptr;
// position of m_element in m_path_ptr->m_pathname.
// if m_element is implicit dot, m_pos is the
// position of the last separator in the path.
// end() iterator is indicated by
// m_pos == m_path_ptr->m_pathname.size()
path::string_type::size_type m_pos;
};
//------------------------------------------------------------------------------------//
// class path::reverse_iterator //
//------------------------------------------------------------------------------------//
class path_reverse_iterator :
public boost::iterator_facade<
path_reverse_iterator,
const path,
boost::bidirectional_traversal_tag
>
{
public:
explicit path_reverse_iterator(path_iterator itr) :
m_itr(itr)
{
if (itr != itr.m_path_ptr->begin())
m_element = *--itr;
}
private:
friend class boost::iterator_core_access;
friend class boost::filesystem::path;
path const& dereference() const { return m_element; }
bool equal(path_reverse_iterator const& rhs) const BOOST_NOEXCEPT { return m_itr == rhs.m_itr; }
void increment()
{
--m_itr;
if (m_itr != m_itr.m_path_ptr->begin())
{
path_iterator tmp = m_itr;
m_element = *--tmp;
}
}
void decrement()
{
m_element = *m_itr;
++m_itr;
}
private:
path_iterator m_itr;
path m_element;
};
// std::lexicographical_compare would infinitely recurse because path iterators
// yield paths, so provide a path aware version
bool lexicographical_compare(path_iterator first1, path_iterator const& last1, path_iterator first2, path_iterator const& last2);
} // namespace path_detail
using path_detail::lexicographical_compare;
//------------------------------------------------------------------------------------//
// //
// non-member functions //
// //
//------------------------------------------------------------------------------------//
BOOST_FORCEINLINE bool operator==(path const& lhs, path const& rhs)
{
return lhs.compare(rhs) == 0;
}
template< typename Path, typename Source >
BOOST_FORCEINLINE typename boost::enable_if_c<
boost::conjunction<
boost::is_same< Path, path >,
detail::path_traits::is_convertible_to_path_source< typename boost::remove_cv< Source >::type >
>::value,
bool
>::type operator==(Path const& lhs, Source const& rhs)
{
return lhs.compare(rhs) == 0;
}
template< typename Source, typename Path >
BOOST_FORCEINLINE typename boost::enable_if_c<
boost::conjunction<
boost::is_same< Path, path >,
detail::path_traits::is_convertible_to_path_source< typename boost::remove_cv< Source >::type >
>::value,
bool
>::type operator==(Source const& lhs, Path const& rhs)
{
return rhs.compare(lhs) == 0;
}
BOOST_FORCEINLINE bool operator!=(path const& lhs, path const& rhs)
{
return lhs.compare(rhs) != 0;
}
template< typename Path, typename Source >
BOOST_FORCEINLINE typename boost::enable_if_c<
boost::conjunction<
boost::is_same< Path, path >,
detail::path_traits::is_convertible_to_path_source< typename boost::remove_cv< Source >::type >
>::value,
bool
>::type operator!=(Path const& lhs, Source const& rhs)
{
return lhs.compare(rhs) != 0;
}
template< typename Source, typename Path >
BOOST_FORCEINLINE typename boost::enable_if_c<
boost::conjunction<
boost::is_same< Path, path >,
detail::path_traits::is_convertible_to_path_source< typename boost::remove_cv< Source >::type >
>::value,
bool
>::type operator!=(Source const& lhs, Path const& rhs)
{
return rhs.compare(lhs) != 0;
}
BOOST_FORCEINLINE bool operator<(path const& lhs, path const& rhs)
{
return lhs.compare(rhs) < 0;
}
template< typename Path, typename Source >
BOOST_FORCEINLINE typename boost::enable_if_c<
boost::conjunction<
boost::is_same< Path, path >,
detail::path_traits::is_convertible_to_path_source< typename boost::remove_cv< Source >::type >
>::value,
bool
>::type operator<(Path const& lhs, Source const& rhs)
{
return lhs.compare(rhs) < 0;
}
template< typename Source, typename Path >
BOOST_FORCEINLINE typename boost::enable_if_c<
boost::conjunction<
boost::is_same< Path, path >,
detail::path_traits::is_convertible_to_path_source< typename boost::remove_cv< Source >::type >
>::value,
bool
>::type operator<(Source const& lhs, Path const& rhs)
{
return rhs.compare(lhs) > 0;
}
BOOST_FORCEINLINE bool operator<=(path const& lhs, path const& rhs)
{
return lhs.compare(rhs) <= 0;
}
template< typename Path, typename Source >
BOOST_FORCEINLINE typename boost::enable_if_c<
boost::conjunction<
boost::is_same< Path, path >,
detail::path_traits::is_convertible_to_path_source< typename boost::remove_cv< Source >::type >
>::value,
bool
>::type operator<=(Path const& lhs, Source const& rhs)
{
return lhs.compare(rhs) <= 0;
}
template< typename Source, typename Path >
BOOST_FORCEINLINE typename boost::enable_if_c<
boost::conjunction<
boost::is_same< Path, path >,
detail::path_traits::is_convertible_to_path_source< typename boost::remove_cv< Source >::type >
>::value,
bool
>::type operator<=(Source const& lhs, Path const& rhs)
{
return rhs.compare(lhs) >= 0;
}
BOOST_FORCEINLINE bool operator>(path const& lhs, path const& rhs)
{
return lhs.compare(rhs) > 0;
}
template< typename Path, typename Source >
BOOST_FORCEINLINE typename boost::enable_if_c<
boost::conjunction<
boost::is_same< Path, path >,
detail::path_traits::is_convertible_to_path_source< typename boost::remove_cv< Source >::type >
>::value,
bool
>::type operator>(Path const& lhs, Source const& rhs)
{
return lhs.compare(rhs) > 0;
}
template< typename Source, typename Path >
BOOST_FORCEINLINE typename boost::enable_if_c<
boost::conjunction<
boost::is_same< Path, path >,
detail::path_traits::is_convertible_to_path_source< typename boost::remove_cv< Source >::type >
>::value,
bool
>::type operator>(Source const& lhs, Path const& rhs)
{
return rhs.compare(lhs) < 0;
}
BOOST_FORCEINLINE bool operator>=(path const& lhs, path const& rhs)
{
return lhs.compare(rhs) >= 0;
}
template< typename Path, typename Source >
BOOST_FORCEINLINE typename boost::enable_if_c<
boost::conjunction<
boost::is_same< Path, path >,
detail::path_traits::is_convertible_to_path_source< typename boost::remove_cv< Source >::type >
>::value,
bool
>::type operator>=(Path const& lhs, Source const& rhs)
{
return lhs.compare(rhs) >= 0;
}
template< typename Source, typename Path >
BOOST_FORCEINLINE typename boost::enable_if_c<
boost::conjunction<
boost::is_same< Path, path >,
detail::path_traits::is_convertible_to_path_source< typename boost::remove_cv< Source >::type >
>::value,
bool
>::type operator>=(Source const& lhs, Path const& rhs)
{
return rhs.compare(lhs) <= 0;
}
// Note: Declared as a template to delay binding to Boost.ContainerHash functions and make the dependency optional
template< typename Path >
inline typename boost::enable_if_c<
boost::is_same< Path, path >::value,
std::size_t
>::type hash_value(Path const& p) BOOST_NOEXCEPT
{
#ifdef BOOST_WINDOWS_API
std::size_t seed = 0u;
for (typename Path::value_type const* it = p.c_str(); *it; ++it)
hash_combine(seed, *it == L'/' ? L'\\' : *it);
return seed;
#else // BOOST_POSIX_API
return hash_range(p.native().begin(), p.native().end());
#endif
}
inline void swap(path& lhs, path& rhs) BOOST_NOEXCEPT
{
lhs.swap(rhs);
}
BOOST_FORCEINLINE path operator/(path lhs, path const& rhs)
{
lhs.append(rhs);
return lhs;
}
template< typename Source >
BOOST_FORCEINLINE typename boost::enable_if_c<
detail::path_traits::is_convertible_to_path_source< typename boost::remove_cv< Source >::type >::value,
path
>::type operator/(path lhs, Source const& rhs)
{
lhs.append(rhs);
return lhs;
}
// inserters and extractors
// use boost::io::quoted() to handle spaces in paths
// use '&' as escape character to ease use for Windows paths
template< typename Char, typename Traits >
inline std::basic_ostream< Char, Traits >&
operator<<(std::basic_ostream< Char, Traits >& os, path const& p)
{
return os << boost::io::quoted(p.template string< std::basic_string< Char > >(), static_cast< Char >('&'));
}
template< typename Char, typename Traits >
inline std::basic_istream< Char, Traits >&
operator>>(std::basic_istream< Char, Traits >& is, path& p)
{
std::basic_string< Char > str;
is >> boost::io::quoted(str, static_cast< Char >('&'));
p = str;
return is;
}
// name_checks
// These functions are holdovers from version 1. It isn't clear they have much
// usefulness, or how to generalize them for later versions.
BOOST_FILESYSTEM_DECL bool portable_posix_name(std::string const& name);
BOOST_FILESYSTEM_DECL bool windows_name(std::string const& name);
BOOST_FILESYSTEM_DECL bool portable_name(std::string const& name);
BOOST_FILESYSTEM_DECL bool portable_directory_name(std::string const& name);
BOOST_FILESYSTEM_DECL bool portable_file_name(std::string const& name);
BOOST_FILESYSTEM_DECL bool native(std::string const& name);
namespace detail {
// For POSIX, is_directory_separator() and is_element_separator() are identical since
// a forward slash is the only valid directory separator and also the only valid
// element separator. For Windows, forward slash and back slash are the possible
// directory separators, but colon (example: "c:foo") is also an element separator.
inline bool is_directory_separator(path::value_type c) BOOST_NOEXCEPT
{
return c == path::separator
#ifdef BOOST_WINDOWS_API
|| c == path::preferred_separator
#endif
;
}
inline bool is_element_separator(path::value_type c) BOOST_NOEXCEPT
{
return c == path::separator
#ifdef BOOST_WINDOWS_API
|| c == path::preferred_separator || c == L':'
#endif
;
}
} // namespace detail
//------------------------------------------------------------------------------------//
// class path miscellaneous function implementations //
//------------------------------------------------------------------------------------//
namespace detail {
inline bool path_algorithms::has_filename_v3(path const& p)
{
return !p.m_pathname.empty();
}
inline bool path_algorithms::has_filename_v4(path const& p)
{
return path_algorithms::find_filename_v4_size(p) > 0;
}
inline path path_algorithms::filename_v4(path const& p)
{
string_type::size_type filename_size = path_algorithms::find_filename_v4_size(p);
string_type::size_type pos = p.m_pathname.size() - filename_size;
const value_type* ptr = p.m_pathname.c_str() + pos;
return path(ptr, ptr + filename_size);
}
inline path path_algorithms::extension_v4(path const& p)
{
string_type::size_type extension_size = path_algorithms::find_extension_v4_size(p);
string_type::size_type pos = p.m_pathname.size() - extension_size;
const value_type* ptr = p.m_pathname.c_str() + pos;
return path(ptr, ptr + extension_size);
}
inline void path_algorithms::append_v4(path& left, path const& right)
{
path_algorithms::append_v4(left, right.m_pathname.c_str(), right.m_pathname.c_str() + right.m_pathname.size());
}
} // namespace detail
// Note: Because of the range constructor in C++23 std::string_view that involves a check for contiguous_range concept,
// any non-template function call that requires a check whether the source argument (which may be fs::path)
// is convertible to std::string_view must be made after fs::path::iterator is defined. This includes overload
// resolution and SFINAE checks. Otherwise, the concept check result formally changes between fs::path::iterator
// is not defined and defined, which causes compilation errors with gcc 11 and later.
// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106808
BOOST_FORCEINLINE path::compare_op::result_type path::compare_op::operator() (const value_type* source, const value_type* source_end, const codecvt_type*) const
{
path src;
src.m_pathname.assign(source, source_end);
return m_self.compare(src);
}
template< typename OtherChar >
BOOST_FORCEINLINE path::compare_op::result_type path::compare_op::operator() (const OtherChar* source, const OtherChar* source_end, const codecvt_type* cvt) const
{
path src;
detail::path_traits::convert(source, source_end, src.m_pathname, cvt);
return m_self.compare(src);
}
inline path& path::operator=(path const& p)
{
return assign(p);
}
inline path& path::operator+=(path const& p)
{
return concat(p);
}
BOOST_FORCEINLINE path& path::operator/=(path const& p)
{
return append(p);
}
#if !defined(BOOST_WINDOWS_API)
inline path path::generic_path() const
{
return path(*this);
}
#endif
inline path path::lexically_proximate(path const& base) const
{
path tmp(lexically_relative(base));
return tmp.empty() ? *this : tmp;
}
inline path::reverse_iterator path::rbegin() const
{
return reverse_iterator(end());
}
inline path::reverse_iterator path::rend() const
{
return reverse_iterator(begin());
}
inline bool path::filename_is_dot() const
{
// implicit dot is tricky, so actually call filename(); see path::filename() example
// in reference.html
path p(filename());
return p.size() == 1 && *p.c_str() == dot;
}
inline bool path::filename_is_dot_dot() const
{
return size() >= 2 && m_pathname[size() - 1] == dot && m_pathname[size() - 2] == dot && (m_pathname.size() == 2 || detail::is_element_separator(m_pathname[size() - 3]));
// use detail::is_element_separator() rather than detail::is_directory_separator
// to deal with "c:.." edge case on Windows when ':' acts as a separator
}
#if !defined(BOOST_FILESYSTEM_NO_DEPRECATED)
BOOST_FILESYSTEM_DETAIL_DEPRECATED("Use path::lexically_normal() instead")
BOOST_FORCEINLINE path& path::normalize()
{
path tmp(lexically_normal());
m_pathname.swap(tmp.m_pathname);
return *this;
}
#endif // !defined(BOOST_FILESYSTEM_NO_DEPRECATED)
// The following functions are defined differently, depending on Boost.Filesystem version in use.
// To avoid ODR violation, these functions are not defined when the library itself is built.
// This makes sure they are not compiled when the library is built, and the only version there is
// is the one in user's code. Users are supposed to consistently use the same Boost.Filesystem version
// in all their translation units.
#if !defined(BOOST_FILESYSTEM_SOURCE)
BOOST_FORCEINLINE path& path::append(path const& p)
{
BOOST_FILESYSTEM_VERSIONED_SYM(detail::path_algorithms::append)(*this, p.m_pathname.data(), p.m_pathname.data() + p.m_pathname.size());
return *this;
}
BOOST_FORCEINLINE path& path::append(path const& p, codecvt_type const&)
{
BOOST_FILESYSTEM_VERSIONED_SYM(detail::path_algorithms::append)(*this, p.m_pathname.data(), p.m_pathname.data() + p.m_pathname.size());
return *this;
}
BOOST_FORCEINLINE path& path::append(const value_type* begin, const value_type* end)
{
BOOST_FILESYSTEM_VERSIONED_SYM(detail::path_algorithms::append)(*this, begin, end);
return *this;
}
BOOST_FORCEINLINE path& path::append(const value_type* begin, const value_type* end, codecvt_type const&)
{
BOOST_FILESYSTEM_VERSIONED_SYM(detail::path_algorithms::append)(*this, begin, end);
return *this;
}
BOOST_FORCEINLINE path& path::remove_filename()
{
BOOST_FILESYSTEM_VERSIONED_SYM(detail::path_algorithms::remove_filename)(*this);
return *this;
}
BOOST_FORCEINLINE path& path::replace_extension(path const& new_extension)
{
BOOST_FILESYSTEM_VERSIONED_SYM(detail::path_algorithms::replace_extension)(*this, new_extension);
return *this;
}
BOOST_FORCEINLINE int path::compare(path const& p) const
{
return BOOST_FILESYSTEM_VERSIONED_SYM(detail::path_algorithms::compare)(*this, p);
}
BOOST_FORCEINLINE path path::filename() const
{
return BOOST_FILESYSTEM_VERSIONED_SYM(detail::path_algorithms::filename)(*this);
}
BOOST_FORCEINLINE path path::stem() const
{
return BOOST_FILESYSTEM_VERSIONED_SYM(detail::path_algorithms::stem)(*this);
}
BOOST_FORCEINLINE path path::extension() const
{
return BOOST_FILESYSTEM_VERSIONED_SYM(detail::path_algorithms::extension)(*this);
}
BOOST_FORCEINLINE bool path::has_filename() const
{
return BOOST_FILESYSTEM_VERSIONED_SYM(detail::path_algorithms::has_filename)(*this);
}
BOOST_FORCEINLINE path path::lexically_normal() const
{
return BOOST_FILESYSTEM_VERSIONED_SYM(detail::path_algorithms::lexically_normal)(*this);
}
namespace path_detail {
BOOST_FORCEINLINE void path_iterator::increment()
{
BOOST_FILESYSTEM_VERSIONED_SYM(detail::path_algorithms::increment)(*this);
}
BOOST_FORCEINLINE void path_iterator::decrement()
{
BOOST_FILESYSTEM_VERSIONED_SYM(detail::path_algorithms::decrement)(*this);
}
BOOST_FORCEINLINE bool lexicographical_compare(path_iterator first1, path_iterator const& last1, path_iterator first2, path_iterator const& last2)
{
return BOOST_FILESYSTEM_VERSIONED_SYM(detail::path_algorithms::lex_compare)(first1, last1, first2, last2) < 0;
}
} // namespace path_detail
#endif // !defined(BOOST_FILESYSTEM_SOURCE)
//--------------------------------------------------------------------------------------//
// class path member template specializations //
//--------------------------------------------------------------------------------------//
template< >
inline std::string path::string< std::string >() const
{
return string();
}
template< >
inline std::wstring path::string< std::wstring >() const
{
return wstring();
}
template< >
inline std::string path::string< std::string >(codecvt_type const& cvt) const
{
return string(cvt);
}
template< >
inline std::wstring path::string< std::wstring >(codecvt_type const& cvt) const
{
return wstring(cvt);
}
template< >
inline std::string path::generic_string< std::string >() const
{
return generic_string();
}
template< >
inline std::wstring path::generic_string< std::wstring >() const
{
return generic_wstring();
}
template< >
inline std::string path::generic_string< std::string >(codecvt_type const& cvt) const
{
return generic_string(cvt);
}
template< >
inline std::wstring path::generic_string< std::wstring >(codecvt_type const& cvt) const
{
return generic_wstring(cvt);
}
} // namespace filesystem
} // namespace boost
//----------------------------------------------------------------------------//
#include <boost/filesystem/detail/footer.hpp>
#endif // BOOST_FILESYSTEM_PATH_HPP
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